Home / 39,216.46-54,118.60-21,311.47

Finding the Fourth Proportional to 39,216.46, 54,118.60 and 21,311.47

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Solution

The fourth proportional to 39,216.46, 54,118.60 and 21,311.47 is: 29,409.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.46 : 54,118.60 = 21,311.47 : x
  2. Step 2: Convert to fraction form
    39,216.46/54,118.60 = 21,311.47/x
  3. Step 3: Cross multiply
    39,216.46x = 54,118.60 × 21,311.47
  4. Step 4: Simplify right side
    39,216.46x = 1,153,346,920.34
  5. Step 5: Solve for x
    x = 1,153,346,920.34/39,216.46
  6. Step 6: Final answer
    x = 29,409.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.